Document original simulator for image fogging detection, and ima

Details Document original simulator for image fogging detection, and ima Document original simulator for image fogging detection, and ima

1999-04-07

2000-03-14

Smith, Matthew S.

Electrophotography

Control of electrophotography process

Densitometer detail

399 72, G03G 1500

Patent

active

060384131

ABSTRACT:
A document original simulator including first tone simulation portion having substantially the same reflectance as a white original sheet and a second tone simulation portion having a lower reflectance than the first tone simulation portion. When an image fogging detecting operation is to be performed with the use of the document original simulator, it is checked whether or not the amount of light reflected from the first tone simulation portion when the first tone simulation portion is illuminated with light is smaller than the amount of light reflected from the white original sheet placed on a document original presenting section when the white original sheet is illuminated with light. If the amount of the light reflected from the first tone simulation portion of the document original simulator is smaller than the amount of the light reflected from the white original sheet, the image fogging detecting operation is performed with the use of the first tone simulation portion of the document original simulator. If not, the image fogging detecting operation is performed with the use of the second tone simulation portion of the document original simulator.

REFERENCES:
patent: 5198861 (1993-03-01), Hasegawa et al.
patent: 5477312 (1995-12-01), Hori
patent: 5652952 (1997-07-01), Katsuhara

Affiliated with

Also associated with

Rating

Document original simulator for image fogging detection, and ima does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Document original simulator for image fogging detection, and ima, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Document original simulator for image fogging detection, and ima will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-178028